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Suppose that the probability mass function for a discrete random variable X is given by p(x)...

Suppose that the probability mass function for a discrete random variable X is given by p(x) = c x, x = 1, 2, ... , 9. Find the value of the cdf (cumulative distribution function) F(x) for 7 ≤ x < 8.

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TOPIC: Cdf of discrete random variables.

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